Choose Module for Bahia State Registration (#37)

Current discoverModule method has missing a rule to choose what Module
is used to calculate digit checker when numbers starting with number 8.

Numbers starting with 0, 1, 2, 3, 4, 5 or 8 must be calculated with Module 10.
Numbers starting with 6, 7 ou 9 must be calculated with Module 11.

[http://www.sintegra.gov.br/Cad_Estados/cad_BA.html](Bahia Rules)

fix #36

Author: thalfm

src/StateRegistration/Bahia.php

@@ -3,6 +3,7 @@
 namespace Brazanation\Documents\StateRegistration;
 
 use Brazanation\Documents\DigitCalculator;
+use function in_array;
 
 final class Bahia extends State
 {
@@ -60,7 +61,7 @@ private function discoverModule($baseNumber)
         if (strlen($baseNumber) == 6) {
             $charToCheck = substr($baseNumber, 0, 1);
         }
-        if (6 <= $charToCheck && $charToCheck <= 9) {
+        if (in_array($charToCheck, [6,7,9])) {
             return DigitCalculator::MODULE_11;
         }
 

tests/StateRegistration/BahiaTest.php

@@ -22,6 +22,13 @@ public function provideValidNumbers()
             ['0635718-30'],
             ['770288-84'],
             ['077.028.884'],
+            ['085456408'],
+            ['78215597'],
+            ['75467384'],
+            ['45564835'],
+            ['01314209'],
+            ['111568918'],
+            ['039681030']
         ];
     }